Male antene: postupci smanjivanja izmjera i primjene

The paper presents research results in the field of small antennas obtained at the Department of Wireless Communications, Faculty of Electrical Engineering and Computing, University of Zagreb. A study comparing the application of several miniaturization techniques on a shorted patch antenna is presented. Single and dual band shorted patch antennas with notches and/or slot are introduced. A PIFA designed for application in mobile GSM terminals is described. The application of stacked shorted patches as array elements for a mobile communication base station as well as for electromagnetic field sensor is presented. The design of single and dual band folded monopoles is described. Prototypes of the presented antennas have been manufactured and their characteristics were verified by measurements.U radu su prikazani rezultati istraživanja u području malih antena ostvareni na Zavodu za Radiokomunikacije, Sveučilišta u Zagrebu Fakulteta elektrotehnike i računarstva. Prikazana je primjena više postupaka za smanjivanje izmjera skraćene mikrotrakaste antene. Opisane su izvedbe skraćenih mikrotrakastih antena s urezima i prorezom za rad u jednom i u dva frekvencijska područja. Prikazana je izvedba planarne invertirane F-antene (PIFA) za primjenu u ručnim terminalima sustava pokretnih komunikacija GSM. Višeslojne skraćene mikrotrakaste antene uporabljene su za izvedbu antenskog niza za baznu postaju sustava pokretnih komunikacija te kao elementi osjetila za mjerenje jakosti elektromagnetskog polja. Prikazana je izvedba savijenih monopolnih antena za rad u jednom te u dva frekvencijska pojasa. Izrađeni su prototipovi opisanih antena i mjerenjima su ispitane njihove osobine

Anxiety and depression in hospitalized patients in Department of Oncology University Clinical Hospital Mostar

BackgroundIn recent decades, growing interest in the research association of somatic and psychiatric disorders. Contemporary research and clinical practice shows that approximately half of cancer patients are associated with mental disorders, mostly depression and anxiety disorder.AimTo establish presence of depression and anxiety in patients hospitalized on oncology in University Clinic Hospital in Mostar.Examinees and methods: In total, 80 patients hospitalized on oncology in University Clinic Hospital in Mostar between January 1st and March 31st 2010. (Examine group) and 80 patients who were admitted in ordination of family medicine in Mostar between March 1st and March 20th 2010. (Control group), participated in the research. In research we used Becks Anxiety and Depression Inventory.ResultsExaminees hospitalized on oncology had higher presence of depression in comparison to control group (Fisher exact test, χ2 test = 23,852: P &lt; 0,001). We found no significant difference in presence of anxiety between examine and control group (χ2 test = 3,890; P = 0,143).ConclusionControl group showed statistically higher presence of depression, while we didn’t prove statistically significant difference in presence of anxiety between examine and control group.</jats:sec

Recidivant desmoide fibromatosis of anterior abdominal wall et desmoide fibromatosis of retroperitoneum: Case report

Desmoide or aggressive fibromatosis belong to the group of benign tumor characterized by a locally infiltrative growth and tendency to recur and which do not metastasize. Here is shown 46 years old woman who is coming for examination because of recurrent tumors of the anterior abdominal wall, PH earlier verified as desmoide fibromatosis. With a tumor of the anterior abdominal wall measuring 14.7 x 7.0 x 12.5 cm, CT diagnostics discovered a tumor size of 5.8 x 8.8 cm 6,2x in the lodge earlier removed right kidney, which is in close communication with v. cava inferior (VCI) and A. Illiaca comunis dex. (AIC dex.). Compression of VCI and AIC has resulted in swelling of the right leg as a whole who retired after excision of the tumor. The postoperative course was uneventful